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[GH-ISSUE #20455] issue: Cannot attach Knowledge to folder – dropdown rendered behind modal #57857
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Originally created by @MattMindQ on GitHub (Jan 7, 2026).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/20455
Check Existing Issues
Installation Method
Docker
Open WebUI Version
v0.6.43
Ollama Version (if applicable)
No response
Operating System
Ubuntu 22.04
Browser (if applicable)
No response
Confirmation
README.md.Expected Behavior
When creating or editing a folder and clicking Select Knowledge, the knowledge dropdown menu should render in front of the modal and remain fully selectable/clickable, allowing knowledge bases/files to be attached to the folder.
Actual Behavior
The Select Knowledge dropdown is rendered behind the “Edit Folder” floating modal (likely z-index / stacking context regression). The dropdown is visible only partially (or not at all depending on viewport) and is not clickable, blocking knowledge attachment to folders.
Steps to Reproduce
Start Open WebUI v0.6.43 using Docker Compose (no custom UI modifications).
Log in as any user with permissions to manage folders/assistants.
Navigate to the area where folders are managed (e.g., Assistants → Collections/Folders).
Create a folder or open an existing one and click Edit Folder.
In the modal, locate Knowledge and click Select Knowledge.
Observe that the dropdown opens behind the modal, making selection impossible.
Logs & Screenshots
Additional Information
No response
@owui-terminator[bot] commented on GitHub (Jan 7, 2026):
🔍 Similar Issues Found
I found some existing issues that might be related to this one. Please check if any of these are duplicates or contain helpful solutions:
#20335 issue: Display Issue with Knowledge Database Selection in OpenWebUI 0.6.43
by zunami • Jan 02, 2026 •
bug#19190 issue: Synchronization with Folder Leads to Empty Knowledge Base
by flefevre • Nov 14, 2025 •
bug,confirmed issue#20236 issue: Select knowledge within Folders
by liucoj • Dec 29, 2025 •
bug💡 Tips:
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@Classic298 commented on GitHub (Jan 7, 2026):
PLEASE CHECK FOR EXISTING ISSUES
this was reported FOUR TIMES now and is already fixed in dev